Free Online Text Diff & Comparison Tool
Compare two texts side by side
About Text Diff
Compare two blocks of text side by side and see differences highlighted instantly. Perfect for code reviews, document revisions, and finding changes between versions.
How to Use Text Diff
- 1
Paste original text
Enter the original text in the left panel.
- 2
Paste modified text
Enter the modified version in the right panel.
- 3
View differences
Added, removed, and changed lines are highlighted automatically.
Frequently Asked Questions
Is my data safe?
Yes. All processing happens entirely in your browser. Your data never leaves your device and is never uploaded to any server.
Can I compare code files?
Yes. The diff tool works with any plain text including source code, configuration files, and markup.